Bryant 50YEW Design Manual page 34

Water-to-Water System Design Guide
Part III: Source Side Design / System Selection
Figure 3-1b: System Selection Flow Chart (Part 2)
NOTE: Green arrows indicate Bryant
recommended applications.
1
Does each
unit have
its own
pump(s)?
See drawing 3-3 (
pumps + water-to-air / separate
pumps
32
Are pumps
No
sized for both
units running
simultaneously?
Yes
No
external
Water-to-Air unit must be
)
disabled when
water-to-water unit is
running for DHW
generation.*
*Motorized water valve must also
be installed to allow water flow
only when unit is operating.
Bryant: Whatever It Takes.
Yes
See drawing 3-4 (
external
pumps + water-to-air / single
pump station
)
2
Does
water-to-air
Yes
unit have its
own
pump(s)?
No
Separate pump(s) for
water-to-air unit required
with internal pumps for
50YEW unit.
See drawing 3-5 (
50YEW
internal pumps + water-to-air
)